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Location Sweden, Uppsala
Central coordinates 17o 23.50' East  59o 40.10' North
IBA criteria A4i, B1i, C3
Area 800 ha
Altitude 3 - 35m
Year of IBA assessment 2000

Sveriges Ornitologiska Förening

Site description Shallow (average depth 1 m), almost enclosed bay of Lake Mälaren, surrounded by wet, tussocky meadows which merge into drier pasture and fields. Deciduous copses overlook the bay and there is a conifer-covered hill with bare rock outcrops along the eastern edge. Only 30 ha of open water remain, the rest being choked by invasive Phragmites, Scirpus and Typha.

Key Biodiversity The IBA supports important numbers of passage wildfowl, and the surrounding arable land is an important feeding area. Species of global conservation concern that do not meet IBA criteria: Anser erythropus (up to 5 passage birds), Crex crex (1-3 breeding pairs) and Gallinago media (5-10 passage birds).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bean Goose Anser fabalis passage  1996  3,000-5,000 individuals  good  A4i, B1i, C3  Least Concern 
Greylag Goose Anser anser passage  1996  4,000-5,000 individuals  good  A4i, B1i, C3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Hjälstaviken Nature Reserve 808 is identical to site 800  
Hjälstaviken Wetlands of International Importance (Ramsar) 770 protected area contained by site 770  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Native coniferous woodland  10%
Shrubland Scrub  5%
Grassland Humid grasslands; Mesophile grasslands  20%
Wetlands (inland) Standing freshwater; Water fringe vegetation  40%
Rocky areas Inland cliffs  5%
Artificial - terrestrial Arable land  20%

Land use

Land-use Extent (% of site)
agriculture 35%
forestry 15%
nature conservation and research 100%
tourism/recreation 80%

Protection status National High International High820 ha of IBA covered by Nature Reserve (Hjalstaviken, 821 ha). 770 ha of IBA covered by Ramsar Site (Hjälstaviken, 770 ha). IBA overlaps with Special Protection Area.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lake Hjälstaviken. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife